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45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
/* Boost test/overflow.cpp
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* test if extended precision exponent does not disturb interval computation
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*
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* Copyright 2002-2003 Guillaume Melquiond
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*
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or
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* copy at http://www.boost.org/LICENSE_1_0.txt)
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*/
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#include <boost/numeric/interval.hpp>
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#include <boost/test/minimal.hpp>
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#include "bugs.hpp"
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template<class I>
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void test_one(typename I::base_type x, typename I::base_type f) {
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I y = x;
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typename I::base_type g = 1 / f;
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const int nb = 10000;
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for(int i = 0; i < nb; i++) y *= f;
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for(int i = 0; i < nb; i++) y *= g;
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BOOST_CHECK(in(x, y));
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# ifdef __BORLANDC__
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::detail::ignore_unused_variable_warning(nb);
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# endif
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}
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template<class I>
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void test() {
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test_one<I>(1., 25.);
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test_one<I>(1., 0.04);
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test_one<I>(-1., 25.);
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test_one<I>(-1., 0.04);
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}
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int test_main(int, char *[]) {
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test<boost::numeric::interval<float> >();
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test<boost::numeric::interval<double> >();
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//test<boost::numeric::interval<long double> >();
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# ifdef __BORLANDC__
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::detail::ignore_warnings();
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# endif
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return 0;
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}
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